The better choice between porcelain and glaze surfaces largely depends on the specific application and personal preference. Generally, porcelain surfaces are considered superior due to their durability, non-porous nature, and aesthetic appeal. Porcelain is a type of ceramic that undergoes a high-temperature firing process, resulting in a hard, vitreous surface that is resistant to chips, scratches, and stains. In contrast, glaze is a glass-like coating applied to ceramic surfaces to enhance color, texture, and shine. While glaze offers a wide range of decorative options, it is more susceptible to damage and wear over time.

Data from the American Ceramics Society indicates that porcelain has a higher resistance to thermal shock than glazed ceramics. Porcelain can withstand rapid temperature changes without cracking or chipping, making it ideal for use in kitchenware and dinnerware. Additionally, porcelain's non-porous surface prevents bacteria and odors from adhering to the material, which is particularly important for food-safe applications. According to a study published in the Journal of the American Ceramic Society, porcelain has a water absorption rate of less than 0.5%, compared to glazed ceramics, which can have absorption rates as high as 10%. This low water absorption rate contributes to porcelain's longevity and hygienic properties.

On the other hand, glaze surfaces offer a broader spectrum of colors, patterns, and textures. Glaze can be applied to a variety of ceramic materials, including porcelain, earthenware, and stoneware, allowing for a diverse range of design possibilities. The decorative versatility of glaze makes it a popular choice for artistic and decorative ceramics. However, the decorative nature of glaze also makes it more prone to damage. Glaze can chip, crack, or fade over time, especially when exposed to harsh chemicals or extreme temperatures.

In summary, porcelain surfaces are generally considered better than glaze surfaces due to their superior durability, non-porous nature, and resistance to thermal shock. While glaze offers a wider range of decorative options, its vulnerability to damage and wear makes porcelain the more practical choice for everyday use.